Question | Answer |
What are the three properties of air? | air has mass
air takes up space
Air exerts pressure |
What gases make up air? | nitrogen, oxygen, water vapor and carbon dioxide |
What gas makes up most of the air? | nitrogen |
What is the blanket of air called that surrounds the earth? | atmosphere |
What layer of the atmosphere contains all the weather? | tropposphere |
Airplanes fly in what layer of the atmosphere? | stratosphere |
What instrument measures air pressure? | barometer |
If the barometer is rising, what is happening to the weather? | Cool and dry |
If the barometer is falling, what is happening to the weather? | moist and warm air, possible rain |
What is a large body of air that has similar temperature and moisture? | air mass |
What do you call the boundary where two air masses meet? | a front |
What kind of front has a cold air mass that pushes under a warm air mass? | a cold front |
What kind of front has a warm air mass that covers a cold air mass? | a warm front |
What kind of front has little movement and neither cold or warm fronts take over? | a stationary front |
What kind of weather follows a warm front? | long periods of light rain or snow |
What kind of weather can happen with a cold front? | A thunderstorm, followed by cooler and dryer weather |
What type of storm has rapidly circling tubes of air that can form severe thunderstorms? | A tornado |
What do you call a tornado that is up in the clouds and hasn't touched down on the ground? | A funnel cloud |
What type of storm occurs when warm moist air along front is pushed up suddenly by cold dry air? | A thunderstorm |
During a thunderstorm what do you call the flashes of light and the loud claps of noise? | lightning and thunder |
What type of storm is violent and forms over a warm ocean? | Hurricane |
What is the area of a hurricane that is calm and mainly located in the center called? | the eye |
What does a hurricane need for its energy source? | warm ocean |
Which property of air explains why another object and air cannot be in the same space? | air takes up space |
Which property of air explains why air is matter and weighs something? | air has mass |
Which property of air makes it possible for air to move things? | air exerts pressure |
What do you call the area in the United States where most of the tornadoes occur? | tornado alley |